Brake Boosters - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BigDan3131 · 02-06-2013, 04:05 AM

Yeah I'm full of questions tonight...

So at what point do you need to stop using a vac booster and move to either a hydro-boost or electric booster? Do LS engines make more vac in a different way then Gen I engines do? My Gen I 327 only makes 9" at idle in park.

ls1nova71 · 02-06-2013, 11:04 AM

Quote:

Originally Posted by BigDan3131

Yeah I'm full of questions tonight...

So at what point do you need to stop using a vac booster and move to either a hydro-boost or electric booster? Do LS engines make more vac in a different way then Gen I engines do? My Gen I 327 only makes 9" at idle in park.

As long as you don't put a super big cam in them, LS engines make plenty of vacuum. A vacuum booster will never make the kind of assist you get with a hydroboost, but usually it's enough.

02-06-2013, 04:05 AM	#1
BigDan3131 Registered User Join Date: Jun 2006 Location: Maple Valley, WA Posts: 1,913	Brake Boosters Yeah I'm full of questions tonight... So at what point do you need to stop using a vac booster and move to either a hydro-boost or electric booster? Do LS engines make more vac in a different way then Gen I engines do? My Gen I 327 only makes 9" at idle in park. __________________ Custom Painter/Restoration Specialist 1965 GMC 3/4 Ton LB SOLD? 1964 Chevy El Camino in full restoration 1991 Chevy S10 288K+ miles 2nd Owner SOLD 2020 RAM 1500 Warlock

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